Lutetium

By: Keith Porter

From an ancient name for the city of Paris, Lutetia

Discovered by Georges Urbain and

Carl Auer von Welsbach

Discovered in 1907

The symbol is Lu

The atomic number is 71

The atomic weight is 174.9668g

71 protons/ electrons

104 neutrons

It is found in land and it is a solid.

The physical facts are that it is a type of metal.

Its melting point is 1663°C or 3025°F

Its boiling point is 3402°C or 6156°F

The density is 9.84 grams per cubic centimeter.

its radioactive isotopes can be used as a catalyst in the cracking of petroleum products.

The earth’s crustal abundance is 8×10-1 milligrams per kilogram.

Lutetium was named after Paris.

It has a hexagon shape.

http://education.jlab.org/itselemental/ele071.html

http://www.chemicool.com/elements/lutetium.html

http://www.webelements.com/lutetium/